using System;
using System.Drawing;
using System.Windows.Forms;
using ApplicationLibrary.SqlConnector;

namespace ApplicationLibrary.ExtendedControls
{
    internal class BandTagInfo
    {
        public OutlookBar outlookBar;
        public int index;
        public Image image;

        public BandTagInfo(OutlookBar ob, int index, Image image)
        {
            outlookBar = ob;
            this.index = index;
            this.image = image;
        }
    }

    public class OutlookBar : Panel
    {
        private int buttonHeight;
        private int selectedBand;
        private int selectedBandHeight;

        public int ButtonHeight
        {
            get
            {
                return buttonHeight;
            }

            set
            {
                buttonHeight = value;

                // do recalc layout for entire bar
            }
        }

        public int SelectedBand
        {
            get
            {
                return selectedBand;
            }
            set
            {
                SelectBand(value);
            }
        }

        public OutlookBar()
        {
            buttonHeight = 25;
            selectedBand = 0;
            selectedBandHeight = 0;
        }

        public void Initialize()
        {
            // parent must exist!
            if (Parent != null)
            {
                Parent.SizeChanged += new EventHandler(SizeChangedEvent);
                Size = new Size(((Control)Parent).ClientRectangle.Size.Width, ((Control)Parent).ClientRectangle.Size.Height);
                UpdateBarInfo();
                RedrawBands();
            }
        }

        public void AddBand(string caption, Image image, ContentPanel content)
        {
            content.outlookBar = this;
            int index = Controls.Count;
            BandTagInfo bti = new BandTagInfo(this, index, image);
            BandPanel bandPanel = new BandPanel(caption, image, content, bti);
            Controls.Add(bandPanel);
            UpdateBarInfo();
            RecalcLayout(bandPanel, index);
        }

        public void SelectBand(int index)
        {
            selectedBand = index;
            RedrawBands();
        }

        private void RedrawBands()
        {
            for (int i = 0; i < Controls.Count; i++)
            {
                BandPanel bp = Controls[i] as BandPanel;
                RecalcLayout(bp, i);

                if (i == selectedBand)
                    RedrawIcons(bp);
            }
        }

        private void RedrawIcons(BandPanel bp)
        {
            for (int i = 0; i < bp.Controls.Count; i++)
            {
                if (bp.Controls[i].GetType() == typeof(IconPanel))
                    RecalcLayoutIcons(bp.Controls[i] as IconPanel, i / 2);
            }
        }

        private void RecalcLayoutIcons(IconPanel ip, int index)
        {
            for (int i = 0; i < ip.Controls.Count; i++)
            {
                if (ip.Controls[i].GetType() == typeof(PanelIcon))
                {
                    PanelIcon pi = ip.Controls[i] as PanelIcon;
                    pi.Location = new Point(ip.outlookBar.Size.Width / 2 - pi.Image.Size.Width / 2 - 8,
                        ip.MyMargin + (i / 2) * ip.IconSpacing);
                }

                if (ip.Controls[i].GetType() == typeof(Label))
                {
                    Label lb = ip.Controls[i] as Label;
                    lb.Size = new Size(ip.Size.Width, 15);
                }
            }
        }

        private void UpdateBarInfo()
        {
            selectedBandHeight = ClientRectangle.Height - (Controls.Count * buttonHeight);
        }

        private void RecalcLayout(BandPanel bandPanel, int index)
        {
            int vPos = (index <= selectedBand) ? buttonHeight * index : buttonHeight * index + selectedBandHeight;
            int height = selectedBand == index ? selectedBandHeight + buttonHeight : buttonHeight;

            // the band dimensions
            bandPanel.Location = new Point(0, vPos);
            bandPanel.Size = new Size(ClientRectangle.Width - 16, height);

            // the contained button dimensions
            bandPanel.Controls[0].Location = new Point(0, 0);
            bandPanel.Controls[0].Size = new Size(ClientRectangle.Width - 16, buttonHeight);

            // the contained content panel dimensions
            bandPanel.Controls[1].Location = new Point(0, buttonHeight);
            bandPanel.Controls[1].Size = new Size(ClientRectangle.Width - 16, height - 8);
        }

        private void SizeChangedEvent(object sender, EventArgs e)
        {
            Size = new Size(((Control)sender).ClientRectangle.Size.Width, ((Control)sender).ClientRectangle.Size.Height);

            //Size=new Size(Size.Width, ((Control)sender).ClientRectangle.Size.Height);
            UpdateBarInfo();
            RedrawBands();
        }

        private void OutlookBar_Resize(object sender, EventArgs e)
        {
            Size = new Size(((Control)sender).ClientRectangle.Size.Width, ((Control)sender).ClientRectangle.Size.Height);

            //Size=new Size(Size.Width, ((Control)sender).ClientRectangle.Size.Height);
            UpdateBarInfo();
            RedrawBands();
        }
    }

    internal class BandPanel : Panel
    {
        public BandPanel(string caption, Image image, ContentPanel content, BandTagInfo bti)
        {
            BandButton bandButton = new BandButton(caption, image, bti);
            Controls.Add(bandButton);
            Controls.Add(content);
        }
    }

    internal class BandButton : MenuButton
    {
        private BandTagInfo bti;

        public BandButton(string caption, Image image, BandTagInfo bti)
        {
            Text = caption;
            FlatStyle = FlatStyle.Standard;
            BackColor = SystemColors.GradientActiveCaption;
            ToColor = SystemColors.GradientInactiveCaption;
            Image = image;
            ImageAlign = ContentAlignment.MiddleLeft;
            Visible = true;
            this.bti = bti;
            Click += new EventHandler(SelectBand);
        }

        private void SelectBand(object sender, EventArgs e)
        {
            bti.outlookBar.SelectBand(bti.index);
        }
    }

    public abstract class ContentPanel : Panel
    {
        public OutlookBar outlookBar;

        public ContentPanel()
        {
            // initial state
            Visible = true;
        }
    }

    public class IconPanel : ContentPanel
    {
        public string Module;
        protected int iconSpacing;
        protected int margin;

        public int IconSpacing
        {
            get
            {
                return iconSpacing;
            }
        }

        public int MyMargin
        {
            get
            {
                return margin;
            }
        }

        public IconPanel()
        {
            margin = 10;
            iconSpacing = 32 + 15 + 10;	// icon height + text height + margin
            BackColor = SystemColors.ControlLightLight;
            AutoScroll = true;
        }

        public void AddIcon(string caption, Image image, string appl, FormType DocType, EventHandler onClickEvent)
        {
            int index = Controls.Count / 2;	// two entries per icon
            PanelIcon panelIcon = new PanelIcon(this, image, index, appl, onClickEvent);
            Controls.Add(panelIcon);

            Label label = new Label();
            label.Text = caption;
            label.Visible = true;
            label.Location = new Point(0, margin + image.Size.Height + index * iconSpacing);
            label.Size = new Size(Size.Width, 15);
            label.TextAlign = ContentAlignment.TopCenter;

            //label.Click+=onClickEvent;
            label.Tag = panelIcon;
            Controls.Add(label);
        }
    }

    public class PanelIcon : PictureBox
    {
        public int index;
        public string Application;
        public IconPanel iconPanel;

        private Color bckgColor;
        private bool mouseEnter;

        public int Index
        {
            get
            {
                return index;
            }
        }

        public PanelIcon(IconPanel parent, Image image, int index, string application, EventHandler onClickEvent)
        {
            this.index = index;
            this.iconPanel = parent;
            this.Application = application;
            Image = image;
            Visible = true;
            Location = new Point((iconPanel.outlookBar.Size.Width - 16) / 2 - image.Size.Width / 2,
                            iconPanel.MyMargin + index * iconPanel.IconSpacing);
            Size = image.Size;
            Click += onClickEvent;
            Tag = this;

            ControlPaint.DrawImageDisabled(this.CreateGraphics(), Image, 0, 0, System.Drawing.Color.Transparent);

            MouseEnter += new EventHandler(OnMouseEnter);
            MouseLeave += new EventHandler(OnMouseLeave);
            MouseMove += new MouseEventHandler(OnMouseMove);

            bckgColor = iconPanel.BackColor;
            mouseEnter = false;
        }

        protected override void OnPaint(PaintEventArgs pe)
        {
            if (!Enabled)
                ControlPaint.DrawImageDisabled(pe.Graphics, Image, 0, 0, System.Drawing.Color.Fuchsia);
            else
                base.OnPaint(pe);
        }

        private void OnMouseMove(object sender, MouseEventArgs args)
        {
            if ((args.X < Size.Width - 2) &&
                (args.Y < Size.Width - 2) &&
                (!mouseEnter))
            {
                BackColor = Color.LightCyan;
                BorderStyle = BorderStyle.FixedSingle;
                Location = Location - new Size(1, 1);
                mouseEnter = true;
            }
        }

        private void OnMouseEnter(object sender, EventArgs e)
        {
        }

        private void OnMouseLeave(object sender, EventArgs e)
        {
            if (mouseEnter)
            {
                BackColor = bckgColor;
                BorderStyle = BorderStyle.None;
                Location = Location + new Size(1, 1);
                mouseEnter = false;
            }
        }
    }
}